Answer: Electronic mail
Explanation:
Electronic mail is the exchange of messages between people using electronic devices. Electronic mail predates and was also crucial to the establishment of the Internet.
Electronic mail (E-mail) started in 1965 as a way for the multiple users of a time-sharing mainframe computer to communicate and send amesages across to each other.
I believe the answer is Christopher Columbus
Answer: To increase national security
Explanation:
The most recent president to have had a mustache would be William Howard Taft (1909–1913).
